I was just using my “scale and watermark” workflow on a new photo when I noticed the sharpness of the downscaled image is not as good as I would hope. I tried a “Lanczos 3 (non-separable)” scale to the same dimensions using Affinity Photo and I think the result was visibly crisper than Retrobatch achieved with “High” quality.
Is this something that can be improved upon, and can Retrobatch list (at least in the documentation) what algorithms are being used in each case (though nearest neighbour is already shown).
The example photo was scaling down from 5968px to 3200px wide.